Feed-water heater



(No Model.)

E. REYNOLDS.

FEED WATER HEATER. No; 254,047. Patentd Feb. 21,1882.

u. PETERS. Pnowmha m nu'r. Washinginn. o. c J

UNITED STATES-- EDIVIN REYNOLDS, (9F MILW'AUKEE, \VISUONSIN.

PATENT Dan ca,

SPECIFICATIONfm-ming part of Letters Patent No. 254,047, dated February 21, 1852. Application filed December 1, 1881. (No model.)

To all whom "it may concern:

Be it known that I, EDWIN REYNOLDS, of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Feed-Water Heaters, of which the following is a specification.

My invention is in the nature of an improvement upon a certain feed-water heater for which Letters Patent were granted me May [0 25, 1880, and June 8, 1880; and it has for its object the construction of the heating and pnrifying apparatus in such a manner as to simplify and reduce thecost of construction, while maintaining the efficiency ot' the former machines.

In my former heaters I used one or two coils, through which the feed-water to be heated circulated from below upward or from above downward, the coils being set in an annular 2o steam-jacket surrounding a central hot-water well. There is a serious objection to the use of the coils with water containing considerable matter in solution, in that the carbonate or sulphate of lime indurates upon the interior 2 5 surfaces of the coil and impedes the flow of water. The accumulation of scale upon the coil also reduces the efiiciency of the heater by diminishing the rate of transfer of heat through the walls of the coil. The coils are 0 expensive to construct and maintain, and with waters from a limestone water-shed impose an extra duty upon the attendant to avoid the serious accumulation of internal deposits. In my present heater the tubes are straight from 3 5 end to end, and so arranged that by simply removing the head or cap of the heater they can be thoroughly cleaned upon the water side by scrapers or brushes. heating-tubes I place a deposit-pan or catchbasin, into which deposits at the top of the heater are precipitated. A surface blow-oft arranged to draw from the top of the heater and from the deposit-pan is placed above the latter.

In the accompanying drawing, which is a section on the vertical axis of myimproved heater, I have shown in detail my present method of construction.

A is the shell of the heater, preferably of wrought-iron.

B is the settling-chamber, fully shown and described in my former patents above referred Above the system of to. The'shell A is-connected to the settlingchamber by a curvilinear line of rivets, as shown at a a. 5

O is the head of the heater, attached by bolts 0 t0 the flange O. which in turn is secured to the shell A byriveting, as shown at c c.

D D D D are the vertical tubes set between tube-sheets d d. E is a central tube, of larger diameter than the tubes D I), which is closed by a plug or cup, or by welding the upper end. The lower end of the tube E is expanded into or otherwise attached to the lower tube-sheet d, and is free at the upper end, which permits it to expand and contract without straining thejoint. V

F is the feed-pipe through which the cold water is pumped to the heater. This pipe enters the heater at the bottom through the cen- 7o ter of the settling-chamber, and passes vertically upward through the chamber B and inverted central tube, E, terminating a short distance from the top of said tube.

G is a deposit-pan or catch-basin of large di- 7 ameter, set with legs upon the top tube-sheet d.

H is the hot-water pipe from heater to boiler.

I is the surface blow-01f, provided with an upward branch, I, and a downward branch, 1 and a regulating-valve, t.

J is the exhaust-inlet, and K the exhaustoutlet, provided with the customary seats and flanges for pipe-connections.

L is a blow-oh pipe atthe bottom of the settling-chamber B, provided with a regulat- 8 5 ing cook or valve, 1, to remove the deposit from the settling-chamber.

The action of the heater is as follows: Water flows through the pipe F upward into the inverted pipe E; thence downward through the annular space between the pipes E and F into the settling-chamber B; thence upward through the vertical tubes D DD 1), around the deposit-pan G, and out of the heater to the boiler through the pipe H. The water is par- 5 tially heated during the transit through the pipes F and E, after which the precipitation of matter in suspension is readily accomplished in the settling-chamber B. The final heating of the water in transit through the tubes D D D removes the major portion of the matter in solution, which is either blown off through the pipes I I I or caught in the deposit-pan G. The heating effect is obtained by the circulation of the exhaust-steam around the tubes D D D from the inlet J to the outlet K.

The removal of the deposit-pan is accomplished by detaching the cap 0 of the heater, and revolving the pipes l l and their connecting T to a horizontal position, when the 'pan with its contents can be lifted out and cleaned of the accumulated deposits.

Havingdeseribed my invention, what [ultbiil] 1. In feed-water heaters for utilizing the exhaust from steam-engines, the combination of the inlet-pipe F, inverted descendingpipe E, and settling-chamber B, substantially as and for the purpose described.

2. In feed-water heaters for utilizing the exhaust from steam-engines, the combination of the tubes D D D, deposit-pan G, and removable cap 0, substantially as and for the purpose described.

3. In feed-water heaters for utilizing the exhaust from steam-engines, the surface blow-off I I 1 arranged in the head of the heater, in combination with the deposit-pan G, substantially as and for the purpose described.

In testimony whereofl have signed my name to the foregoing specification in the presence of two subscribing witnesses.

EDWIN REYNOLDS.

Witnesses:

SAMUEL Bowen, G. H. TUCKER, Jr. 

